CN207562196U - Block bronchial cannula and assisted respirator - Google Patents

Abstract

The utility model provides a kind of closure bronchial cannula and assisted respirator, is related to the field of medical instrument technology.The closure bronchial cannula includes conduit and air bag, air bag is communicated with air charging system, is arranged with locking cap, crossover sub and breathing pipe fitting on conduit successively, crossover sub with locking cap is detachable is fixedly connected, crossover sub is equipped with first interface, first interface and respiratory siphon fittings；The assisted respirator includes lung ventilator and above-mentioned closure bronchial cannula, and the snorkel of lung ventilator is connected with the first interface of crossover sub.Locking cap and crossover sub are detachably connected, conduit and air bag can be extracted out by dismantling locking cap and crossover sub, crossover sub and respiratory siphon joint location are constant, and lung ventilator does not suspend the assisted respiartion of patient by first interface and breathing pipe fitting, so as to reduce withdrawal conduit when needs to suspend assisted respiartion secondary injury caused by patient.

Description

Block bronchial cannula and assisted respirator

Technical field

The utility model is related to the field of medical instrument technology more particularly to a kind of closure bronchial cannulas and assisted respiartion dress It puts.

Background technology

Endotracheal intubation refers to special tracheal catheter being inserted into patient airway by oral cavity or nasal cavity, is a kind of tracheae Interior anesthesia and the technology to give emergency treatment to a patient.Wherein, closure bronchial cannula is common lung isolation technology to provide one-lung ventilation One of tracheal catheter.

It is existing to block bronchial cannula mainly including for extracting the conduit of gas in the lobe of the lung, being installed with and being used on conduit To the air bag that the lobe of the lung is blocked, air charging system is linked on air bag；Crossover sub is installed on conduit, is included on crossover sub The first interface being connect with lung ventilator and the second interface for wearing Bronchofiberscope.After the completion of the lobe of the lung of patient blocks operation, Healthcare givers needs entirely block bronchial cannula taking-up, accesses lung ventilator after crossover sub is removed from conduit again to suffering from Person carries out assisted respiartion, and the pause of assisted respiartion can cause secondary injury to patient.

Utility model content

The purpose of this utility model is to provide a kind of closure bronchial cannula and assisted respirator, to solve existing skill It needs entirely block bronchial cannula taking-up when removing conduit and air bag present in art, crossover sub is removed from conduit It accesses lung ventilator again afterwards and assisted respiartion is carried out to patient, the technology that the pause of assisted respiartion can cause patient secondary injury is asked Topic.

Closure bronchial cannula provided by the utility model, including conduit and air bag, the conduit includes connecting pin and inserts Enter end, the Air sac cover is set in the insertion end, and the air bag is communicated with air charging system；Connecting pin described in the conduit upper edge The direction for being directed toward the insertion end is arranged with locking cap, crossover sub and breathing pipe fitting, one end of the crossover sub successively With the locking cap is detachable is fixedly connected, the other end and the respiratory siphon joint pivot；The crossover sub is equipped with the One interface, the first interface and the respiratory siphon fittings.

Further, connecting tube is connected between the locking cap and the crossover sub, the connecting tube includes screw thread End and joint end, the end of thread are threadedly coupled with the locking cap, and the joint end is clamped with the crossover sub.

Further, tight lock part is equipped in the locking cap, sealing ring, the spiral shell of the connecting tube are equipped in the tight lock part Line end is equipped with tapered squeezing head, and the tapered squeezing head matches with the tight lock part, and for being compressed to the sealing ring；Institute The end for stating tight lock part is equipped with the first buckle, and the connecting tube is equipped with the second buckle, second buckle and the described first card Button matches；The outer wall of the crossover sub is equipped with the first buckling groove, and the inner wall of the connecting tube joint end is equipped with the first clamping Head, first clamping joint match with first buckling groove.

Further, the outer wall of described crossover sub one end is equipped with the second buckling groove, and the inner wall of the breathing pipe fitting is set There is the second clamping joint, second clamping joint matches with second buckling groove；Second clamping joint is multiple, Duo Gesuo The second clamping joint is stated to be uniformly distributed along the circumferential direction of the respiratory siphon inner nosepiece wall.

Further, the crossover sub is equipped with second interface, the second interface and the respiratory siphon fittings.

Further, detachable connection has seal cap on the crossover sub, and the seal cap is used for described second Sealing joint.

Further, the seal cap includes the connecting portion and sealing that are connected with each other, the sealing and the connection Portion matches, and the connecting portion is fixedly arranged on the end of the second interface, and equipped with the through-hole connected with the second interface；Institute Connecting portion is stated equipped with connect band, the connect band is equipped with mounting hole, and the crossover sub is equipped with fixed lobe, described solid Determine hole with the fixed lobe to match.

Further, the position on the conduit close to the connecting pin is arranged with breeches joint, is set on the breeches joint There are third interface and the 4th interface, the air charging system is connected across the third interface with the air bag；4th interface Inside it is equipped with the automatic air supply device connected with the air bag.

Further, the air charging system includes interconnected gas tube, pilot balloon and check valve successively, described to fill Tracheae is connected across the third interface with the air bag.

The utility model blocks having the beneficial effect that for bronchial cannula：

Closure bronchial cannula provided by the utility model, including be used to extract in the lobe of the lung conduit of gas and secretion and For the air bag blocked to the unilateral lobe of the lung, movable sleeve is equipped with locking cap, crossover sub and breathing pipe fitting on conduit, In, for fixed conversion connector and breathing pipe fitting, the first interface that crossover sub is equipped with is used for and lung ventilator locking cap Snorkel connects.When initial, air bag is in shrivelled state, and when patient needs to block the unilateral lobe of the lung, breathing pipe fitting is connected Breathing catheter is connected, the insertion end of conduit is inserted into the patient by patient's nasal cavity or oral cavity, passes sequentially through crossover sub and exhales Suction attachment, and along breathing catheter downwards until air bag arrival target lung section, is inflated, air bag by air charging system into air bag It heaves and target lung section is blocked, the unilateral lobe of the lung is by sealing blocking, opposite side lobe of the lung normal work；The end of conduit insertion end It is connected with the lobe of the lung of target lung section, the gas blocked in the lobe of the lung is extracted out by conduit, the lobe of the lung is blocked and is in shrivelled state, medical treatment Personnel can carry out treatment operation to the lobe of the lung.

When carrying out assisted respiartion to patient during treatment, the first interface of crossover sub and the snorkel of lung ventilator connect, After conduit is downwardly into patient's body along breathing catheter, lung ventilator pass sequentially through snorkel, first interface, breathing pipe fitting and Breathing catheter supplies oxygen assisted respiartion to patient.When patient no longer needs to block the lobe of the lung, by air charging system by the gas in air bag Body is extracted out, and air bag is in shrivelled state；Crossover sub and locking cap are dismantled, the position of crossover sub and breathing pipe fitting is not It is dynamic, conduit is extracted out from crossover sub, air bag extraction patient is external, and lung ventilator continues to assist patient respiratory.Locking cap and turn Changing-over head is detachably connected, and when patient's lobe of the lung does not need to block, dismantles locking cap and crossover sub can be by conduit and air bag Extraction, crossover sub and breathing pipe fitting keep connected state with breathing catheter, without separation, therefore in conduit extraction process, Lung ventilator does not suspend the assisted respiartion of patient by first interface and breathing pipe fitting, so as to reduce pause assisted respiartion pair The secondary injury of patient.

Another of the utility model is designed to provide a kind of assisted respirator, including lung ventilator and above-mentioned closure branch Trachea cannula, the snorkel of the lung ventilator are connected with the first interface of the crossover sub, which has upper All technique effects for blocking bronchial cannula are stated, which is not described herein again.

Description of the drawings

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.

Fig. 1 is the structure diagram of closure bronchial cannula that the utility model embodiment one provides；

Fig. 2 is locking cap in Fig. 1, connecting tube, crossover sub and the attachment structure schematic diagram for breathing pipe fitting；

Fig. 3 is the schematic cross-sectional view of locking cap in Fig. 1, connecting tube, crossover sub and breathing pipe fitting A-A；

Fig. 4 is the structure diagram of locking cap in Fig. 1；

Fig. 5 is the structure diagram of connecting tube in Fig. 1；

Fig. 6 is the structure diagram of crossover sub in Fig. 1；

Fig. 7 is the structure diagram that pipe fitting is breathed in Fig. 1；

Fig. 8 is the structure diagram of seal cap in Fig. 2.

Icon：1- conduits；2- air bags；3- air charging systems；4- locking caps；5- crossover subs；6- breathes pipe fitting； 7- connecting tubes；8- seal caps；9-Y type joints；11- connecting pins；12- insertion ends；31- gas tubes；32- pilot balloons； 33- check valves；41- tight lock parts；51- first interfaces；The first buckling grooves of 52-；The second buckling grooves of 53-；54- second connects Mouthful；55- fixed lobes；The second clamping joints of 61-；The 71- ends of thread；72- joint ends；711- tapered squeezing heads；721- One clamping joint；81- connecting portions；82- sealings；811- through-holes；812- connect bands；813- mounting holes；91- thirds connect Mouthful；The 4th interfaces of 92-.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality Novel protected range.

In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition Concrete meaning of the language in the utility model.

Embodiment one

The present embodiment provides a kind of closure bronchial cannula, as shown in Figure 1, including conduit 1 and air bag 2, conduit 1 includes connecting It connects end 11 and insertion end 12, air bag 2 is sheathed in insertion end 12, air bag 2 is communicated with air charging system 3；1 upper edge connecting pin 11 of conduit Be directed toward insertion end 12 direction be arranged with successively locking cap 4, crossover sub 5 and breathing pipe fitting 6, one end of crossover sub 5 with Locking cap 4 is detachable to be fixedly connected, and the other end is pivotally connected with breathing pipe fitting 6；Crossover sub 5 is equipped with first interface 51, the One interface 51 is connected with breathing pipe fitting 6.

Closure bronchial cannula provided in this embodiment, including being used to extract 1 He of conduit of gas and secretion in the lobe of the lung For the air bag 2 blocked to the unilateral lobe of the lung, movable sleeve is equipped with locking cap 4, crossover sub 5 and breathing pipe fitting on conduit 1 6, wherein, for fixed conversion connector 5 and breathing pipe fitting 6, the first interface 51 that crossover sub 5 is equipped with is used for locking cap 4 It is connect with the snorkel of lung ventilator.When initial, air bag 2 is in shrivelled state, when patient needs to block the unilateral lobe of the lung, Breathing pipe fitting 6 is connected into upper breathing catheter, the insertion end 12 of conduit 1 is inserted into the patient by the nasal cavity of patient or oral cavity, Crossover sub 5 and breathing pipe fitting 6 are passed sequentially through, and along breathing catheter downwards until air bag 2 reaches target lung section, by filling Device of air 3 is inflated into air bag 2, and air bag 2, which is heaved, blocks target lung section, and the unilateral lobe of the lung is by sealing blocking, opposite side lung Leaf works normally；The end of 1 insertion end 12 of conduit is connected with the lobe of the lung inner cavity of target lung section, will be blocked in the lobe of the lung by conduit 1 Gas extraction, block the lobe of the lung be in shrivelled state, healthcare givers can carry out treatment operation to the lobe of the lung.Specifically, conduit 1 Bore can be 2.5mm~3.5mm, pipe outside diameter can be 3.5mm~4.5mm, the conduit 1 of the size can be fast and effective The gas in the lobe of the lung is extracted on ground out, improves therapeutic effect；The wall thickness of air bag 2 can be 0.1mm~0.3mm, the air bag 2 of the thickness It is smaller to the irritation of patient when inserted into the patient, and when the smaller air bag 2 of thickness is heaved, effect is blocked to the lobe of the lung of patient Fruit is preferable.

When carrying out assisted respiartion to patient during treatment, the first interface 51 of crossover sub 5 connects with the snorkel of lung ventilator It connects, after conduit 1 is downwardly into patient's body along breathing catheter, lung ventilator passes sequentially through snorkel, first interface 51, respiratory siphon Connector 6 and breathing catheter supply oxygen assisted respiartion to patient.When patient no longer needs to block the lobe of the lung, by air charging system 3 by gas Gas extraction in capsule 2, air bag 2 are in shrivelled state；Crossover sub 5 and locking cap 4 are dismantled, crossover sub 5 and respiratory siphon The position of connector 6 is motionless, and conduit 1 is extracted out from crossover sub 5, and air bag 2 extracts that patient is external, and lung ventilator continues to assist therewith Patient respiratory.Locking cap 4 and crossover sub 5 are detachably connected, and when patient's lobe of the lung does not need to block, dismantle locking cap 4 and conversion Connector 5 can extract conduit 1 and air bag 2 out, and crossover sub 5 keeps connected state with breathing catheter, without separation, therefore lead In 1 extraction process of pipe, lung ventilator does not suspend the assisted respiartion of patient by first interface 51 and breathing pipe fitting 6, so as to subtract Small pause assisted respiartion is to the secondary injury of patient.

Specifically, in order to ensure closure of the air bag 2 to patient's lobe of the lung, it can be by the insertion end 12 of conduit 1 and 1 main body of conduit Between bend 15 °~35 °, conduit 1 and the human body bronchus structure of the angle match, and are not only convenient for the slotting of conduit 1 and air bag 2 Enter, can also improve the sealing performance of air bag 2.In addition, in order to enhance the comfort level of patient, the end of 1 insertion end 12 of conduit can be with The material of soft material is selected to be made, so as to reduce friction when conduit 1 is inserted into patient's body tracheae.

In addition, the connection of locking cap 4 and crossover sub 5, can also play fixed limiting to the position of conduit 1 and air bag 2 Effect, when 2 position of air bag is fixed, the first interface 51 of crossover sub 5 is connect with lung ventilator, and the position of crossover sub 5 is fixed It is constant, it after locking cap 4 is connect with crossover sub 5, is relatively fixed between conduit 1 and locking cap 4, conduit 1 is fixed on crossover sub 5 On, the position of conduit 1 and air bag 2 also immobilizes, so that it is guaranteed that closure of the air bag 2 to target lung section, reduce conduit 1 deviate and The occurrence of air bag 2 is driven to deviate, cause target lung section gas leakage.

In the present embodiment, as shown in Fig. 1-Fig. 3, Fig. 5, connecting tube can be connected between locking cap 4 and crossover sub 5 7, connecting tube 7 includes the end of thread 71 and joint end 72, and the end of thread 71 is threadedly coupled with locking cap 4, joint end 72 and crossover sub 5 Clamping.When initial, locking cap 4 is movably set on conduit 1, and the both ends of connecting tube 7 connect respectively with locking cap 4 and crossover sub 5 It is connected together, when locking cap 4 and 7 non-screw-threaded coupling of connecting tube, relative displacement can occur between locking cap 4 and conduit 1；When After the angular adjustment of conduit 1 and air bag 2 is good, the end of thread 71 of connecting tube 7 and 4 screw thread of locking cap are screwed, locking cap 4 and conduit It can no longer be relatively moved between 1, the thread fitting between connecting tube 7 and locking cap 4 is all very convenient when connecting, dismantling, and Seal with screwed joint is preferable.

In the present embodiment, as shown in Figure 4 and Figure 5, tight lock part 41 is also provided in locking cap 4, is equipped in tight lock part 41 Sealing ring, the end of thread 71 of connecting tube 7 are equipped with tapered squeezing head 711, and tapered squeezing head 711 matches with tight lock part 41, and uses It is compressed in sealing ring；The end of tight lock part 41 is equipped with the first buckle, and connecting tube 7 is equipped with the second buckle, the second buckle and the One buckle matches；The outer wall of crossover sub 5 is equipped with the first buckling groove 52, and the inner wall of 7 joint end 72 of connecting tube is equipped with the first card Connector 721, the first clamping joint 721 match with the first buckling groove 52.Connecting tube 7 is used to connect locking cap 4 and crossover sub 5, First buckle of the second buckle and tight lock part 41 in connecting tube 7 is in clamped condition, when connecting tube 7 and 4 non-screw thread of locking cap During connection, locking cap 4 and connecting tube 7 are by the first buckle and together with second snaps connection, and connecting tube 7 and locking cap 4 can To relatively rotate along buckle, that is, locking cap 4 links together always with connecting tube 7, and during the non-screw threads for fastening of the two, Conduit 1 can be relatively moved with locking cap 4, and the angle of 1 position of conduit and air bag 2 is adjusted.The screw thread of connecting tube 7 End 71 is threadedly coupled with locking cap 4, specifically, screw thread can be opened up in the inner wall of locking cap 4, the outer wall of connecting tube 7 opens up phase Matched screw thread, during connecting tube 7 is screwed in locking cap 4, the tapered squeezing head 711 in connecting tube 7 squeezes into locking cap 4 In tight lock part 41, and sealing ring is compressed；After the end of thread 71 of connecting tube 7 screws in locking cap 4,4 tight lock part 41 of locking cap Interior sealing ring, which is squeezed, holds conduit 1 tightly, and conduit 1 is fixed together with locking cap 4, conduit 1 is fixed limiting, cone Shape extrusion head 711 is to sealing ring squeezed tight, it may also be ensured that the leakproofness between locking cap 4 and connecting tube 7.

The joint end 72 of connecting tube 7 is connect with crossover sub 5, during connection, by the first clamping joint of 7 joint end 72 of connecting tube 721 are caught in the first buckling groove 52 of crossover sub 5, specifically, the first buckling groove 52 includes setting along crossover sub 5 is axial The guide part put and along the circumferentially disposed clamping portion of crossover sub 5, clamping portion is connected with guide part, and the side of connectivity part clamping portion Wall is equipped with locking head, and during connection, the first clamping joint 721 of connecting tube 7 is inserted into the guide part of the first buckling groove 52, and along conversion The axial of connector 5 promotes, and when reaching the end of guide part, is circumferentially rotatablely connected pipe 7 or crossover sub 5, the first clamping joint 721 It is closely contradicted with locking head, continues to rotate, until the first clamping joint 721 is detached from locking head completely into clamping portion, completion connects Take over 7 and the connection of crossover sub 5, wherein, locking head limits the first clamping joint 721, reduces and even avoids the first card The occurrence of connector 721 is detached from from guide part.When connecting tube 7 and crossover sub 5 are dismantled, process with during installation on the contrary, this In repeat no more.Specifically, the first clamping joint 721 can be multiple, and it is uniformly distributed along the circumferential direction of connecting tube 7；Correspondingly, the One buckling groove 52 is also multiple, is also uniformly distributed along the circumferential direction of crossover sub 5.

In addition, the turn of locking cap 4 and connecting tube 7 for convenience, can be equipped in the outer wall of locking cap 4 and connecting tube 7 Anti-skid chequer.In order to enhance the leakproofness between connecting tube 7 and crossover sub 5, sealing ring can also be equipped in connecting tube 7, even After take over 7 is clamped with crossover sub 5, the end of crossover sub 5 compresses sealing ring.

In the present embodiment, as shown in Figure 3 and Figure 7, the outer wall of 5 one end of crossover sub is equipped with the second buckling groove 53, respiratory siphon The inner wall of connector 6 is equipped with the second clamping joint 61, and the second clamping joint 61 matches with the second buckling groove 53；Second clamping joint 61 is more A, multiple second clamping joints 61 are uniformly distributed along the circumferential direction of breathing 6 inner wall of pipe fitting.The second clamping that will be breathed on pipe fitting 6 First 61 are caught in the second buckling groove 53 on crossover sub 5, complete crossover sub 5 and breathe the connection between pipe fitting 6, and second 61 and second buckling groove 53 of clamping joint is multiple, and is uniformly distributed respectively along the circumferential direction of breathing pipe fitting 6, crossover sub 5, can To enhance crossover sub 5 and breathe the degree of being connected firmly and stability between pipe fitting 6.In addition, in order to ensure crossover sub 5 with The connection sealing between pipe fitting 6 is breathed, sealing ring can be equipped in the outer wall of crossover sub 5, connect with breathing pipe fitting 6 Afterwards, the common pinch seal circle of outer wall of the inner wall and crossover sub 5 of breathing pipe fitting 6, so as to improve leakproofness between the two.

In the present embodiment, as shown in figures 1 to 6, second interface 54, second interface 54 are also provided on crossover sub 5 It is connected with breathing pipe fitting 6.Second interface 54 can be used for being inserted into Bronchofiberscope, in therapeutic process, can pass through second interface 54 And Bronchofiberscope is inserted into patient's body by breathing catheter connector 6, for observing 1 catheter position of conduit；Or to second interface 54 Middle insertion suction tube, for attracting intrabronchial secretion and tamper.Breathing is inserted into order to reduce Bronchofiberscope or suction tube Situation about being stuck during pipe fitting 6 breathes and could be provided as tapering transition at the caliber change of pipe fitting 6.

In the present embodiment, as shown in Figure 1-Figure 3, detachable connection there can be seal cap 8 on crossover sub 5, seal Cap 8 is used to seal second interface 54.Since first interface 51 and second interface 54 are connected with breathing pipe fitting 6, when being not required to When using Bronchofiberscope, seal cap 8 can be fastened in second interface 54, second interface 54 is sealed, exhaled with reducing Air-flow is flowed out from second interface 54 in suction attachment 6 or ambient atmos are flowed into from second interface 54 in breathing pipe fitting 6, so as to The occurrence of influencing assisted mechanical ventilator.

Similar, one end can also be connect equipped with cap stopper with connecting tube 7 in crossover sub 5, when conduit 1 and air bag 2 are extracted out After patient is external, cap stopper is filled in the opening of crossover sub 5, which is sealed.Specifically, cap stopper can include phase The lantern ring to connect and piston part, lantern ring are sheathed on crossover sub 5, and the opening progress that piston part is used to fill in crossover sub 5 is close Envelope.In addition, the end of 1 connecting pin 11 of conduit can also be equipped with cap stopper or seal cap 8, after conduit 1 is evacuated the lobe of the lung, make The opening of conduit 1 is blocked with cap stopper or seal cap 8, extraneous gas is reduced and enters conduit 1 and the lobe of the lung.

Specifically, in the present embodiment, as shown in figure 8, seal cap 8 includes the connecting portion 81 being connected with each other and sealing 82, Sealing 82 matches with connecting portion 81, and connecting portion 81 is fixedly arranged on the end of second interface 54, and is equipped with and connects with second interface 54 Logical through-hole 811；Connecting portion 81 is equipped with connect band 812, and connect band 812 is equipped with mounting hole 813, and crossover sub 5 is equipped with Fixed lobe 55, mounting hole 813 match with fixed lobe 55.During using Bronchofiberscope, Bronchofiberscope is passed through on connecting portion 81 Through-hole 811 is inserted into second interface 54, and sealing 82 is hung on by the connection of connecting portion 81 on crossover sub 5, in connect band 812 Mounting hole 813 be sleeved on the fixed lobe 55 of crossover sub 5, play dual fixed function to seal cap 8, reduce connecting portion 81 When being detached from second interface 54, the occurrence of seal cap 8 is fallen；When needing to seal second interface 54 using seal cap 8, fibre It is extracted out in Zhi Jingcong through-holes 811, and sealing 82 and connecting portion 81 is tightly connected, realize that the sealing to second interface 54 is sealed It is stifled.

In the present embodiment, as shown in Figure 1, the position on conduit 1 close to connecting pin 11 can also be arranged with breeches joint 9, Y Type joint 9 is equipped with 91 and the 4th interface 92 of third interface, and air charging system 3 is connected across third interface 91 with air bag 2；4th connects The automatic air supply device connected with air bag 2 is equipped in mouth 92.Breeches joint 9 be used for air charging system 3 and automatic air supply device into Line position puts fixation, wherein, air charging system 3 is used to carry out inflation/deflation to air bag 2；Automatic air supply device is used to supplement gas to air bag 2, Possibility gas leakage, automatic air supply device can carry out supplement gas to air bag 2 automatically during air bag 2 blocks the lobe of the lung, with Ensure that air bag 2 is in and heave state, plugging action is played to the lobe of the lung.

Specifically, in the present embodiment, as shown in Figure 1, air charging system 3 can include successively interconnected gas tube 31, Pilot balloon 32 and check valve 33, gas tube 31 are connected across third interface 91 with air bag 2.Pilot balloon in air charging system 3 32 are used for measuring at most in air bag 2, to facilitate what healthcare givers grasped air bag 2 to heave degree, so as to mutually cope with Air bag 2 carries out inflation/deflation；In addition, pilot balloon 32 can also be electrically connected with automatic air supply device, pass through the finger of pilot balloon 32 The amount of showing, to automatic air supply device output signal, instruction automatic inflatable device of air carries out inflation/deflation operation to air bag 2.Using unidirectional During valve 33, it can only be inflated from the external world into gas tube 31 and air bag 2, the gas in air bag 2 and gas tube 31 can not be by unidirectional Valve 33 is discharged, the phenomenon that so as to reduce or even avoid gas backflow in air bag 2；When needing to discharge the gas in air bag 2, it can incite somebody to action Check valve 33 disassembles, and air bag 2 is evacuated.

Embodiment two

The present embodiment provides a kind of assisted respirators, are inserted including the closure bronchus described in lung ventilator and embodiment one Pipe, the snorkel of lung ventilator are connected with the first interface 51 of crossover sub 5.The assisted respirator has above-mentioned closure bronchus All technique effects of intubation, operation principle have been described above, and which is not described herein again.

Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type.

Claims (10)

1. a kind of closure bronchial cannula, which is characterized in that including conduit (1) and air bag (2), the conduit (1) includes connection End (11) and insertion end (12), the air bag (2) are sheathed in the insertion end (12), and the air bag (2) is communicated with inflation dress It puts (3)；The direction that the insertion end (12) is directed toward in connecting pin (11) described in conduit (1) upper edge is arranged with locking cap successively (4), crossover sub (5) and breathing pipe fitting (6), one end of the crossover sub (5) and the locking cap (4) are detachable solid Fixed connection, the other end are pivotally connected with the breathing pipe fitting (6)；The crossover sub (5) is equipped with first interface (51), and described the One interface (51) is connected with the breathing pipe fitting (6).

2. closure bronchial cannula according to claim 1, which is characterized in that the locking cap (4) connects with the conversion Connecting tube (7) is connected between head (5), the connecting tube (7) includes the end of thread (71) and joint end (72), the end of thread (71) it is threadedly coupled with the locking cap (4), the joint end (72) is clamped with the crossover sub (5).

3. closure bronchial cannula according to claim 2, which is characterized in that tight lock part is equipped in the locking cap (4) (41), be equipped with sealing ring in the tight lock part (41), the end of thread (71) of the connecting tube (7) equipped with tapered squeezing head (711), The tapered squeezing head (711) matches with the tight lock part (41), and for being compressed to the sealing ring；The tight lock part (41) end is equipped with the first buckle, and the connecting tube (7) is equipped with the second buckle, second buckle and the described first buckle Match；

The outer wall of the crossover sub (5) is equipped with the first buckling groove (52), and the inner wall of connecting tube (7) joint end (72) is equipped with First clamping joint (721), first clamping joint (721) match with first buckling groove (52).

4. closure bronchial cannula according to any one of claim 1-3, which is characterized in that the crossover sub (5) The outer wall of one end is equipped with the second buckling groove (53), and the inner wall of the breathing pipe fitting (6) is equipped with the second clamping joint (61), and described the Two clamping joints (61) match with second buckling groove (53)；Second clamping joint (61) is multiple, and multiple described second Clamping joint (61) is uniformly distributed along the circumferential direction of described breathing pipe fitting (6) inner wall.

5. closure bronchial cannula according to any one of claim 1-3, which is characterized in that the crossover sub (5) Second interface (54) is equipped with, the second interface (54) connects with the breathing pipe fitting (6).

6. closure bronchial cannula according to claim 5, which is characterized in that detachable on the crossover sub (5) Seal cap (8) is connected with, the seal cap (8) is for the second interface (54) sealing.

7. closure bronchial cannula according to claim 6, which is characterized in that the seal cap (8) is including being connected with each other Connecting portion (81) and sealing (82), the sealing (82) match with the connecting portion (81), the connecting portion (81) The end of the second interface (54) is fixedly arranged on, and equipped with the through-hole (811) connected with the second interface (54)；The connection Portion (81) is equipped with connect band (812), and the connect band (812) is equipped with mounting hole (813), is set on the crossover sub (5) There is fixed lobe (55), the mounting hole (813) matches with the fixed lobe (55).

8. closure bronchial cannula according to any one of claim 1-3, which is characterized in that leaned on the conduit (1) The position of the nearly connecting pin (11) is arranged with breeches joint (9), and the breeches joint (9) is equipped with third interface (91) and the 4th Interface (92), the air charging system (3) connect across the third interface (91) with the air bag (2)；4th interface (92) automatic air supply device connected with the air bag (2) is equipped in.

9. closure bronchial cannula according to claim 8, which is characterized in that the air charging system (3) includes phase successively Intercommunicated gas tube (31), pilot balloon (32) and check valve (33), the gas tube (31) is across the third interface (91) it is connected with the air bag (2).

10. a kind of assisted respirator, which is characterized in that including the closure described in any one of lung ventilator and claim 1-9 Bronchial cannula, the snorkel of the lung ventilator are connected with the first interface (51) of the crossover sub (5).